/*
 * Copyright (C) 2011 Google Inc.
 *
 * Licensed under the Apache License, Version 2.0 (the "License");
 * you may not use this file except in compliance with the License.
 * You may obtain a copy of the License at
 *
 * http://www.apache.org/licenses/LICENSE-2.0
 *
 * Unless required by applicable law or agreed to in writing, software
 * distributed under the License is distributed on an "AS IS" BASIS,
 * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
 * See the License for the specific language governing permissions and
 * limitations under the License.
 */
package com.itranswarp.javapractice.plugin.repackaged.com.google.gson.internal;

import java.io.ObjectStreamException;
import java.math.BigDecimal;

/**
 * This class holds a number value that is lazily converted to a specific number
 * type
 *
 * @author Inderjeet Singh
 */
public final class LazilyParsedNumber extends Number {
	private final String value;

	/** @param value must not be null */
	public LazilyParsedNumber(String value) {
		this.value = value;
	}

	@Override
	public int intValue() {
		try {
			return Integer.parseInt(value);
		} catch (NumberFormatException e) {
			try {
				return (int) Long.parseLong(value);
			} catch (NumberFormatException nfe) {
				return new BigDecimal(value).intValue();
			}
		}
	}

	@Override
	public long longValue() {
		try {
			return Long.parseLong(value);
		} catch (NumberFormatException e) {
			return new BigDecimal(value).longValue();
		}
	}

	@Override
	public float floatValue() {
		return Float.parseFloat(value);
	}

	@Override
	public double doubleValue() {
		return Double.parseDouble(value);
	}

	@Override
	public String toString() {
		return value;
	}

	/**
	 * If somebody is unlucky enough to have to serialize one of these, serialize it
	 * as a BigDecimal so that they won't need Gson on the other side to deserialize
	 * it.
	 */
	private Object writeReplace() throws ObjectStreamException {
		return new BigDecimal(value);
	}

	@Override
	public int hashCode() {
		return value.hashCode();
	}

	@Override
	public boolean equals(Object obj) {
		if (this == obj) {
			return true;
		}
		if (obj instanceof LazilyParsedNumber) {
			LazilyParsedNumber other = (LazilyParsedNumber) obj;
			return value == other.value || value.equals(other.value);
		}
		return false;
	}
}
